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公开(公告)号：US20170087865A1
公开(公告)日：2017-03-30
申请号：US15256785
申请日：2016-09-06
申请人： Takahiro YOSHIDA , Tomohiko KOHDA , Takayuki NAKAI
发明人： Takahiro YOSHIDA , Tomohiko KOHDA , Takayuki NAKAI
IPC分类号： B41J2/175
CPC分类号： B41J2/17563 , B41J2/14274 , B41J2/175 , B41J2/17509 , B41J2/18 , B41J2002/14403 , B41J2202/12
摘要： A liquid discharge head includes a plurality of nozzles, a plurality of individual liquid chambers, a common liquid chamber, a common circulation liquid chamber, and a filter portion. The common liquid chamber includes a first portion disposed side by side with the common circulation liquid chamber in a direction perpendicular to a nozzle array direction in and a second portion not disposed side by side with the common circulation liquid chamber in the direction perpendicular to the nozzle array direction. In a plan view, the second portion partially overlaps the common circulation liquid chamber in the direction perpendicular to the nozzle array direction. A width of the second portion in the direction perpendicular to the nozzle array direction is greater than a width of the first portion in the direction perpendicular to the nozzle array direction. In the plan view, the filter portion is disposed in the second portion.
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公开(公告)号：US20210178776A1
公开(公告)日：2021-06-17
申请号：US17183740
申请日：2021-02-24
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
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公开(公告)号：US20200282740A1
公开(公告)日：2020-09-10
申请号：US16881276
申请日：2020-05-22
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
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公开(公告)号：US20180257374A1
公开(公告)日：2018-09-13
申请号：US15981763
申请日：2018-05-16
申请人： Takahiro YOSHIDA , Tomohiko KOHDA , Takeshi SHIMIZU , Kanshi ABE , Ryo KASAHARA , Takayuki NAKAI , Shiomi ANDOU
发明人： Takahiro YOSHIDA , Tomohiko KOHDA , Takeshi SHIMIZU , Kanshi ABE , Ryo KASAHARA , Takayuki NAKAI , Shiomi ANDOU
IPC分类号： B41J2/14
摘要： A liquid ejection head is provided. The liquid ejection head includes at least two nozzle lines configured to have a plurality of nozzles for ejecting liquid disposed in respective lines, a plurality of individual liquid chambers configured to be in communication with corresponding nozzles of the nozzle lines, and at least two circulation channels corresponding to the nozzle lines, configured to be in communication with the individual liquid chambers. The at least two circulation channels are in communication with each other through a bridging channel disposed in a direction intersecting with the nozzle line direction, and the bridging channel and the circulation channels are disposed at different positions in a thickness direction of a member which forms the bridging channel and the circulation channels.
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公开(公告)号：US20160096369A1
公开(公告)日：2016-04-07
申请号：US14855920
申请日：2015-09-16
申请人： Takeshi SHIMIZU , Tomohiko KOHDA , Takahiro YOSHIDA , Kanshi ABE , Shiomi ANDOU , Takayuki NAKAI , Ryo KASAHARA
发明人： Takeshi SHIMIZU , Tomohiko KOHDA , Takahiro YOSHIDA , Kanshi ABE , Shiomi ANDOU , Takayuki NAKAI , Ryo KASAHARA
IPC分类号： B41J2/14
CPC分类号： B41J2/14274 , B41J2/14233 , B41J2/1612 , B41J2/1632 , B41J2202/11
摘要： A disclosed liquid-ejection head for ejecting liquid droplets includes a substrate having a diaphragm forming a part of walls of a pressure liquid chamber, and a piezoelectric element adhered to the substrate with adhesive, and configured to apply pressure to the pressure liquid chamber via the diaphragm. The piezoelectric element has a surface facing the substrate having the diaphragm, and the surface has one or more projection parts in an area in which the pressure liquid chamber is not disposed, and whereon the substrate having the diaphragm has one or more recess parts that fit in the respective projection parts.
摘要翻译： 所公开的用于喷射液滴的液体喷射头包括具有形成压力液体室的壁的一部分的隔膜的基板和用粘合剂粘附到基板的压电元件，并经配置以经由该压力液体室向压力液体室施加压力 隔膜 压电元件具有面向具有隔膜的基板的表面，并且表面在未设置压力液体室的区域中具有一个或多个突出部分，并且其中具有隔膜的基板具有一个或多个适合的凹部 在相应的投影部分。
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公开(公告)号：US20200094573A1
公开(公告)日：2020-03-26
申请号：US16695790
申请日：2019-11-26
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
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公开(公告)号：US20170297333A1
公开(公告)日：2017-10-19
申请号：US15638724
申请日：2017-06-30
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
CPC分类号： B41J2/18 , B41J2/14104 , B41J2/14274 , B41J2/175 , B41J2/17509 , B41J2/17563 , B41J2002/14403 , B41J2002/14419 , B41J2202/07 , B41J2202/11 , B41J2202/12
摘要： A liquid discharging head includes: a nozzle plate having a plurality of nozzles from which liquid is discharged; a channel member including a plurality of individual liquid chambers that lead to the plurality of nozzles, respectively, and including a plurality of circulation channels that lead to the plurality of individual liquid chambers, respectively; and a common liquid chamber member for forming a common liquid chamber that supplies liquid to the plurality of individual liquid chambers and for forming a circulation common liquid chamber that leads to the plurality of circulation channels.
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公开(公告)号：US20160082728A1
公开(公告)日：2016-03-24
申请号：US14849869
申请日：2015-09-10
申请人： Tomohiko Kohda , Takeshi SHIMIZU , Ryo KASAHARA , Kanshi ABE , Takayuki NAKAI , Takahiro YOSHIDA , Shiomi ANDOU
发明人： Tomohiko Kohda , Takeshi SHIMIZU , Ryo KASAHARA , Kanshi ABE , Takayuki NAKAI , Takahiro YOSHIDA , Shiomi ANDOU
IPC分类号： B41J2/14
CPC分类号： B41J2/1433 , B41J2/14274 , B41J2002/14403 , B41J2202/11
摘要： A liquid discharge head includes a nozzle plate having nozzles arrayed to discharge liquid droplets; a passage plate to form individual liquid chambers communicating with the respective nozzles; and a wall surface member to form a wall surface of the individual liquid chambers. The passage plate is formed with at least three plate-shaped members stacked and bonded by an adhesive. The nozzle plate and one plate-shaped member, and another plate-shaped member and the wall surface member are bonded, respectively. The three plate-shaped members include separation wall parts forming separation walls between the individual liquid chambers. At least one of the three plate-shaped members has a separation wall width different from that of the others, to have fillets of the forced-out adhesive formed between the wall surfaces, and surfaces of the plate-shaped members, the nozzle plate, or the wall surface member.
摘要翻译： 液体排出头包括喷嘴板，喷嘴板具有排出液滴的喷嘴; 通道板，以形成与相应喷嘴连通的单独的液体室; 以及壁表面构件以形成各个液体室的壁表面。 通道板形成有至少三个由粘合剂堆叠和粘合的板状构件。 喷嘴板和一个板状构件以及另一个板状构件和壁面构件分别接合。 三个板状构件包括在各个液体室之间形成分隔壁的分离壁部分。 三个板状构件中的至少一个具有与其它板状构件不同的分隔壁宽度，在壁面之间形成有强制脱出粘合剂的圆角，并且板状构件，喷嘴板， 或壁表面构件。
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公开(公告)号：US20230330999A1
公开(公告)日：2023-10-19
申请号：US18338518
申请日：2023-06-21
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
CPC分类号： B41J2/18 , B41J2/17509 , B41J2/14274 , B41J2/175 , B41J2/17563 , B41J2/14104 , B41J2002/14419 , B41J2202/07 , B41J2202/11 , B41J2202/12 , B41J2002/14403
摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
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公开(公告)号：US20220250392A1
公开(公告)日：2022-08-11
申请号：US17660705
申请日：2022-04-26
申请人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
发明人： Tomohiko KOHDA , Takahiro YOSHIDA , Shiomi ANDOU , Takayuki NAKAI , Kanshi ABE , Takeshi SHIMIZU , Ryo KASAHARA
摘要： A liquid discharging head includes a nozzle plate having a plurality of nozzles from which liquid is discharged; a plurality of individual liquid chambers that are communicably connected to the plurality of nozzles, respectively; a common liquid chamber that supplies liquid to the plurality of individual liquid chambers; and a circulation common liquid chamber that leads to a plurality of circulation channels. A part of the common liquid chamber overlaps the circulation common liquid chamber from a direction in which liquid is discharged from the nozzles, and another part of the common liquid chamber overlaps the circulation common liquid chamber from a direction orthogonal to both the direction in which liquid is discharged from the nozzles and a direction in which the nozzles are aligned.
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